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Shurflo 4128-110-E04 Aqua King II 12V Fresh Water Pump 2 GPM 30 PSI

Manufacturer

Shurflo

<h3>About Shurflo: Decades of Reliable Fluid Transfer Innovation</h3><p><strong>Shurflo</strong>, a Pentair brand, has been engineering dependable water pumping solutions since 1968. What began as a mission to supply the recreational vehicle industry with a reliable fresh water pump has grown into a comprehensive lineup trusted by boaters, RV enthusiasts, and industrial users worldwide. Today, Shurflo's legacy is defined by a deep understanding of the RV, marine, and industrial markets, consistently delivering pumps and accessories that stand up to the toughest conditions.</p><p>Shurflo pumps are used across an impressively wide range of applications, including water delivery, waste evacuation, filtration, engine cooling, evaporative cooling, and even dust suppression for industrial environments. Whether powered by air or electricity, Shurflo diaphragm pumps are engineered to perform in places where gas motors are impractical, unsafe, or simply too loud.</p><h3>Marine-Grade Performance, Engineered to Last</h3><p>On the water, Shurflo has earned a reputation for building products that thrive in harsh marine environments. The brand's <a href="/7568-shurflo-wash-down-pumps-systems-201156">wash down pumps and systems</a> are a go-to choice for boaters who need reliable, high-pressure flow for cleaning decks, cockpits, and gear. The Pro Blaster II series, for example, is a well-known workhorse that delivers consistent output in demanding conditions.</p><p>For boats that require a steady, pressurized water supply throughout the vessel, Shurflo's <a href="/7568-shurflo-water-pressure-system-pumps-201165">water pressure system pumps</a> — including the popular Aqua King and Revolution series — deliver smooth, consistent flow at all operational ranges while drawing low current. These pumps are self-priming, designed to operate without harm when run dry, and thermally protected to ensure long service life.</p><p>Anglers will appreciate Shurflo's dedicated <a href="/7568-shurflo-livewell-aerator-pumps-200624">livewell and aerator pumps</a>, which are built for continuous-duty submersible use. Equipped with anti-airlock features and constructed with high-density nylon housings, these pumps keep bait and catch healthy trip after trip.</p><h3>Complete System Support: Tanks, Accessories &amp; Waste Management</h3><p>Shurflo rounds out a complete onboard water system with <a href="/7568-shurflo-accumulator-tanks-200063">accumulator tanks</a> that reduce pump cycling, smooth out pressure fluctuations, and extend pump life — a smart addition to any pressurized water system. For sanitation needs, Shurflo's <a href="/7568-shurflo-macerator-waste-pumps-200645">macerator and waste pumps</a> offer powerful, reliable waste evacuation backed by a thermally protected motor, a dual-cut blade design, and run-dry capability, making them well-suited for both marine and RV sanitation systems.</p><p>From the first pump installed in a 1968 coach to today's advanced fluid transfer systems, Shurflo continues to set the standard for quiet, efficient, and long-lasting water pumping technology across the RV, marine, and industrial worlds.</p>

Part Number

4128-110-E04
09/12/2036 5:05 AM
Sale Price

$137.67

In Stock (10+)

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Usually delivered within 2 days

free shipping

FREE SHIPPING

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Shurflo 4128-110-E04 Aqua King II is a high-performance 12-volt automatic fresh water pump designed specifically for demanding marine, RV, and mobile applications. With a 2 gallon per minute flow rate and 30 PSI maximum pressure, this pump delivers consistent water pressure for onboard sinks, showers, and fresh water systems.

Key Features:

  • Four-chamber diaphragm design provides smooth, pulse-free flow at all demand levels without rapid cycling
  • Automatic demand switch activates pump when water is needed and shuts off when faucet closes
  • Dry self-priming up to 6 feet vertical lift for flexible installation
  • Can run dry without damage thanks to thermal overload protection and sealed motor design
  • Sealed pressure switch and motor housing engineered for harsh marine environments with moisture resistance
  • Draws only 3.5 amps for efficient power consumption
  • Compact dimensions: 8 1/8" L x 5" W x 4 1/8" H for easy mounting in tight spaces
  • Built-in check valve prevents backflow
  • Santoprene valves for long service life and chemical resistance

The Aqua King II pump is ideal for boats, RVs, campers, and other mobile applications requiring reliable fresh water delivery. The sealed motor and corrosion-resistant construction ensure years of dependable service in demanding environments.

Products specifications

Amperage

4 Amps at 12 Volts DC

Capacity

2 Gallons per Minute

Diameter

1/2"

Dimensions

4 1/8" Height x 5" Width x 8 3/16" Length

Voltage

12 Volts DC

Activation Method

Automatic

Warranty Details

Three Years

The experience was wonderful. The ability to look up parts by the make, model, and year of my auto made it easy to find the right part. And getting a discount on shipping to encourage my purchase was awesome. I hope the parts all are correct for my vehicl

Was easy to find the correct parts.

Amazing shipping and low prices

easy and fast shopping.

Thanks

great. couple clicks on mouse and wham! its ordered.

Cannot say enough about how honest these guys are. My order went through without a hitch. Would definitely recommend doing business with them.

Awsome :)

Quick and easy

For some reason, the system tried to use my email address and phone number.

I have no comment right now. 1st timer

so far good

The listing seemed clear and informative. So far so good ;)

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